Method for preparing spherical cobaltous oxide

The present invention discloses a process for the preparation of spherical cobaltous oxide comprising cobalt is cobalt ore raw material, after purification leached cobalt obtained solution, characterized in that the employed complexing - homogeneous precipitation Method precursor, i.e. cobalt cobalt complex was formulated as a salt solution, then by the addition of a precipitating agent solution, control synthetic precursor resulting precipitate precursor; precursor again, an inert atmosphere or slightly reducing gas in the thermal decomposition 300 ℃ -550 ℃ obtain spherical cobaltous oxide, the obtained spherical cobaltous oxide passivating agent using the gas and liquid deactivators joint passivation, heat sealing packaging alkylene oxide to obtain spherical cobalt present invention. High activity of CoO powder prepared by the method of the present invention, highly pure, uniform particle size distribution and concentration of particles and a smooth surface and strong resistance to oxidation, etc., the present invention is a simple process, stable quality, low cost, high degree of automation suitable for large-scale industrial production.